import { createFileRoute, useNavigate } from '@tanstack/react-router'
import { useQuery } from '@tanstack/react-query'
import { useState } from 'react'
import { repairTicketListOptions } from '@/api/repairs'
import { usePagination } from '@/hooks/use-pagination'
import { DataTable, type Column } from '@/components/shared/data-table'
import { RepairFilterPanel, DEFAULT_FILTERS, type RepairFilters } from '@/components/repairs/repair-filters'
import { Button } from '@/components/ui/button'
import { Input } from '@/components/ui/input'
import { Badge } from '@/components/ui/badge'
import { Plus, Search } from 'lucide-react'
import { useAuthStore } from '@/stores/auth.store'
import type { RepairTicket } from '@/types/repair'
import type { PaginationInput } from '@forte/shared/schemas'

export const Route = createFileRoute('/_authenticated/repairs/')({
  validateSearch: (search: Record<string, unknown>) => ({
    page: Number(search.page) || 1,
    limit: Number(search.limit) || 25,
    q: (search.q as string) || undefined,
    sort: (search.sort as string) || undefined,
    order: (search.order as 'asc' | 'desc') || 'desc',
  }),
  component: RepairsListPage,
})

function statusBadge(status: string) {
  const variants: Record<string, 'default' | 'secondary' | 'destructive' | 'outline'> = {
    in_transit: 'secondary',
    intake: 'outline',
    diagnosing: 'secondary',
    pending_approval: 'secondary',
    approved: 'default',
    in_progress: 'default',
    pending_parts: 'secondary',
    ready: 'default',
    picked_up: 'outline',
    delivered: 'outline',
    cancelled: 'destructive',
  }
  const labels: Record<string, string> = {
    in_transit: 'In Transit',
    intake: 'Intake',
    diagnosing: 'Diagnosing',
    pending_approval: 'Pending Approval',
    approved: 'Approved',
    in_progress: 'In Progress',
    pending_parts: 'Pending Parts',
    ready: 'Ready',
    picked_up: 'Picked Up',
    delivered: 'Delivered',
    cancelled: 'Cancelled',
  }
  return <Badge variant={variants[status] ?? 'outline'}>{labels[status] ?? status}</Badge>
}

const columns: Column<RepairTicket>[] = [
  {
    key: 'ticket_number',
    header: 'Ticket #',
    sortable: true,
    render: (t) => <span className="font-mono text-sm">{t.ticketNumber ?? '-'}</span>,
  },
  {
    key: 'customer_name',
    header: 'Customer',
    sortable: true,
    render: (t) => <span className="font-medium">{t.customerName}</span>,
  },
  {
    key: 'instrument',
    header: 'Instrument',
    render: (t) => <>{t.instrumentDescription ?? '-'}</>,
  },
  {
    key: 'status',
    header: 'Status',
    sortable: true,
    render: (t) => statusBadge(t.status),
  },
  {
    key: 'batch',
    header: 'Batch',
    render: (t) => t.repairBatchId ? <Badge variant="outline">Batch</Badge> : <span className="text-muted-foreground">-</span>,
  },
  {
    key: 'intake_date',
    header: 'Intake',
    sortable: true,
    render: (t) => <>{new Date(t.intakeDate).toLocaleDateString()}</>,
  },
  {
    key: 'promised_date',
    header: 'Promised',
    sortable: true,
    render: (t) => <>{t.promisedDate ? new Date(t.promisedDate).toLocaleDateString() : '-'}</>,
  },
  {
    key: 'estimated_cost',
    header: 'Estimate',
    render: (t) => <>{t.estimatedCost ? `$${t.estimatedCost}` : '-'}</>,
  },
]

function RepairsListPage() {
  const navigate = useNavigate()
  const hasPermission = useAuthStore((s) => s.hasPermission)
  const { params, setPage, setSearch, setSort } = usePagination()
  const [searchInput, setSearchInput] = useState(params.q ?? '')
  const [filters, setFilters] = useState<RepairFilters>(DEFAULT_FILTERS)

  // Build query params with filters
  const queryParams: Record<string, unknown> = { ...params }
  if (filters.status?.length) queryParams.status = filters.status.join(',')
  if (filters.conditionIn?.length) queryParams.conditionIn = filters.conditionIn.join(',')
  if (filters.isBatch !== undefined) queryParams.isBatch = String(filters.isBatch)
  if (filters.intakeDateFrom) queryParams.intakeDateFrom = filters.intakeDateFrom
  if (filters.intakeDateTo) queryParams.intakeDateTo = filters.intakeDateTo
  if (filters.promisedDateFrom) queryParams.promisedDateFrom = filters.promisedDateFrom
  if (filters.promisedDateTo) queryParams.promisedDateTo = filters.promisedDateTo

  const { data, isLoading } = useQuery(repairTicketListOptions(queryParams as PaginationInput))

  function handleSearchSubmit(e: React.FormEvent) {
    e.preventDefault()
    setSearch(searchInput)
  }

  function handleRowClick(ticket: RepairTicket) {
    navigate({ to: '/repairs/$ticketId', params: { ticketId: ticket.id }, search: {} as any })
  }

  return (
    <div className="space-y-6">
      <div className="flex items-center justify-between">
        <h1 className="text-2xl font-bold">Repairs</h1>
        {hasPermission('repairs.edit') && (
          <Button onClick={() => navigate({ to: '/repairs/new' })}>
            <Plus className="mr-2 h-4 w-4" />
            New Repair
          </Button>
        )}
      </div>

      <form onSubmit={handleSearchSubmit} className="flex gap-2 max-w-sm">
        <div className="relative flex-1">
          <Search className="absolute left-3 top-1/2 -translate-y-1/2 h-4 w-4 text-muted-foreground" />
          <Input
            placeholder="Search repairs..."
            value={searchInput}
            onChange={(e) => setSearchInput(e.target.value)}
            className="pl-9"
          />
        </div>
        <Button type="submit" variant="secondary">Search</Button>
      </form>

      <RepairFilterPanel filters={filters} onChange={setFilters} />

      <DataTable
        columns={columns}
        data={data?.data ?? []}
        loading={isLoading}
        page={params.page}
        totalPages={data?.pagination.totalPages ?? 1}
        total={data?.pagination.total ?? 0}
        sort={params.sort}
        order={params.order}
        onPageChange={setPage}
        onSort={setSort}
        onRowClick={handleRowClick}
      />
    </div>
  )
}